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公开(公告)号：US20200235633A1
公开(公告)日：2020-07-23
申请号：US16840861
申请日：2020-04-06
Applicant: DENSO CORPORATION
Inventor： Atsushi TANAKA , Naoaki KONO , Tetsuji YAMANAKA , Kunio NAMBA
Abstract: An actuator drives a boost pressure control valve of a supercharger and includes an electric motor, an output shaft, a speed reducer, a rotational angle sensor, a housing and a wiring holder member. The wiring holder member is formed separately from the housing and integrally holds: a sensing device of the rotational angle sensor; and an electric wiring of the electric motor and of the sensing device. A second housing segment of the housing includes a connector insertion hole that extends through the second housing segment from an inside to an outside of the housing. The wiring holder member forms a connector that receives an end portion of the electric wiring and projects from the inside to the outside of the housing through the connector insertion hole.
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公开(公告)号：US20240288086A1
公开(公告)日：2024-08-29
申请号：US18658010
申请日：2024-05-08
Applicant: DENSO CORPORATION
Inventor： Atsushi TANAKA , Yasuo KATO , Ryo SANO
Abstract: A boss is shaped in a tubular form and is injection molded integrally with a housing that forms a flow passage. A ring member is press-fitted to an inner peripheral wall of the boss. A shaft placed on a radially inner side of the ring member is configured to be rotated about a central axis. A movable valve is coupled to a portion of the shaft and is configured to adjust a size of a cross-sectional area of a passage opening at the flow passage. Each of gate marks of the housing is a trace of a site of the housing where molten resin is injected at a time of injection molding of the housing. Each of ribs radially inwardly projects from the inner peripheral wall of the boss and is placed at a corresponding location of the boss which is between adjacent two of the gate marks.
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公开(公告)号：US20200232401A1
公开(公告)日：2020-07-23
申请号：US16842108
申请日：2020-04-07
Applicant: DENSO CORPORATION
Inventor： Masashi YAMAGUCHI , Tetsuji YAMANAKA , Kunio NAMBA , Naoaki KONO , Atsushi TANAKA
Abstract: An actuator drives a boost pressure control valve of a supercharger of an engine and includes an electric motor, an output shaft, a speed reducer, a rotational angle sensor and a housing. The speed reducer includes three pairs of metal gears and is configured to reduce a speed of rotation outputted from the electric motor and transmit the rotation to the output shaft. The rotational angle sensor includes a magnetic circuit device and a sensing device and senses a rotational angle of the output shaft. The housing receives the metal gears and the magnetic circuit device in a common space and supports the output shaft. In an installed state of the actuator where the actuator is installed to the engine, a meshing portion of the metal gears is located on a lower side of a magnetic circuit lowest point in the gravity direction.
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公开(公告)号：US20200217410A1
公开(公告)日：2020-07-09
申请号：US16736210
申请日：2020-01-07
Applicant: DENSO CORPORATION
Inventor： Masashi YAMAGUCHI , Etsugo YANAGIDA , Tetsuji YAMANAKA , Atsushi TANAKA , Naoaki KONO , Kunio NAMBA
IPC: F16H57/02 , F16H57/032 , H02K7/116 , F16H1/22
Abstract: An actuator includes an electric motor, an output shaft and a speed reducer. The speed reducer is configured to transmit rotation, which is outputted from the motor, to the output shaft after reducing a speed of the rotation outputted from the motor. The speed reducer includes an output gear joined to the output shaft and a compound gear. The compound gear includes a large diameter gear, which has a plurality of large gear teeth, and a small diameter gear, which has a plurality of small gear teeth. One of the large diameter gear and the small diameter gear is a metal gear, which is made of a metal member, while another one of the large diameter gear and the small diameter gear is a resin gear, which is made of a resin member, and the resin gear is integrally molded together with the metal gear in one piece.
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公开(公告)号：US20200217255A1
公开(公告)日：2020-07-09
申请号：US16736182
申请日：2020-01-07
Applicant: DENSO CORPORATION
Inventor： Masashi YAMAGUCHI , Etsugo YANAGIDA , Naoaki KONO , Tetsuji YAMANAKA , Atsushi TANAKA , Kunio NAMBA
Abstract: An actuator is configured to drive a boost pressure control valve of a supercharger. The actuator includes: an electric motor; an output shaft; and a speed reducer that is configured to transmit rotation, which is outputted from the electric motor, to the output shaft after reducing a speed of the rotation outputted from the electric motor. The speed reducer has a plurality of gears that include an output gear joined to the output shaft. The plurality of gears further includes a metal gear and a resin gear of a compound gear, which are respectively formed as a large diameter gear and a small diameter gear and are integrated together in one piece. The output gear is a resin gear.
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Patent Agency Ranking
公开(公告)号：US20240003431A1
公开(公告)日：2024-01-04
申请号：US18469004
申请日：2023-09-18
Applicant: DENSO CORPORATION
Inventor： Atsushi TANAKA , Ryo SANO
Abstract: A valve device includes: a housing; a passage forming portion that has at least one passage hole configured to conduct a fluid; a drive device that is configured to output a rotational force; and a shaft that is configured to be rotated about a central axis. The valve device includes: a rotor that is configured to increase or decrease an opening degree of the at least one passage hole in response to rotation of the shaft; and a torsion spring that surrounds the central axis and is configured to urge the shaft relative to the housing in a circumferential direction of the central axis of the shaft. The housing has a stopper that is configured to contact the shaft and thereby limit a rotational drive range of the shaft when the shaft is rotated to a predetermined position. The stopper is placed at an inside of the torsion spring.
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公开(公告)号：US20240003439A1
公开(公告)日：2024-01-04
申请号：US18469283
申请日：2023-09-18
Applicant: DENSO CORPORATION
Inventor： Naoki ASANO , Takuya HAMADA , Atsushi TANAKA , Ryo SANO
IPC: F16K11/074 , F16K31/04 , F01P3/20
CPC classification number: F16K11/074 , F16K31/041 , F01P3/20
Abstract: A valve device may include: a shaft which has a shaft central axis; a stationary disk; a rotor; a housing which has a housing central axis and an opening; a housing cover which closes the opening; and a seal member. The seal member is eccentric with respect to the shaft central axis in conformity with the amount of eccentricity between the shaft central axis and the housing central axis. A valve device may include: a drive device; a shaft which has a shaft central axis; a stationary disk; a rotor; a housing which has a housing central axis and an opening; a drive device case which closes the opening and receives the drive device; and a seal member. The seal member is eccentric with respect to the shaft central axis in conformity with the amount of eccentricity between the shaft central axis and the housing central axis.
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公开(公告)号：US20230243432A1
公开(公告)日：2023-08-03
申请号：US18295401
申请日：2023-04-04
Applicant: DENSO CORPORATION
Inventor： Naoki ASANO , Ryo SANO , Atsushi TANAKA , Takehito MIZUNUMA , Takuya HAMADA
IPC: F16K11/074 , F16K31/04
CPC classification number: F16K11/074 , F16K31/043
Abstract: A valve device includes a housing, a stationary valve and a drive valve. The stationary valve is placed in a fluid passage of the housing. The stationary valve forms a first passage, which conducts fluid, and a penetrating chamber which penetrates through the stationary valve in the axial direction. The drive valve is placed on one axial side of the stationary valve in the fluid passage and forms a second passage which conducts the fluid. The drive valve communicates the second passage to the first passage through rotation of the drive valve. The housing has a bottom portion that covers the penetrating chamber from another axial side. An upstream passage of the fluid passage, which is located on an upstream side of the drive valve and the stationary valve in a flow direction of the fluid, is communicated with the penetrating chamber through a communication passage.
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公开(公告)号：US20240003454A1
公开(公告)日：2024-01-04
申请号：US18469073
申请日：2023-09-18
Applicant: DENSO CORPORATION
Inventor： Yoshitada AONO , Atsushi TANAKA
IPC: F16K27/04 , F16K11/074
CPC classification number: F16K27/045 , F16K11/0743
Abstract: A valve device includes a drive device, a valve element, a housing main body, a main-body cover and a seal member. The housing main body has a main-body connecting portion and a main body fastening portion. The main-body cover has a cover connecting portion and a cover fastening portion. At least one of the housing main body and the main-body cover has a corresponding one of: a rigidity reducing structure that reduces a rigidity of the main-body connecting portion; and a rigidity reducing structure that reduces a rigidity of the cover connecting portion. The rigidity reducing structure is a space that reduces the rigidity.
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公开(公告)号：US20240003429A1
公开(公告)日：2024-01-04
申请号：US18468972
申请日：2023-09-18
Applicant: DENSO CORPORATION
Inventor： Takuya HAMADA , Ryo SANO , Atsushi TANAKA
Abstract: A valve device includes a stationary disk, a shaft and a rotor. The valve device includes: a housing that has a boss portion, through which the shaft is inserted; and a seal member that is shaped in a ring form and is configured to seal a gap between the shaft and the boss portion. The shaft includes a holder that has a contact portion which is in contact with the seal member. The holder is made of a polymer material which includes reinforcing fibers contained in resin. At least the contact portion at the holder extends in an axial direction of the shaft, and a distal end portion of the holder located on one side in the axial direction is coupled to a gear arrangement of a drive device. The distal end portion of the holder has a trace of an injection gate for injecting the polymer material.
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